Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
01/1995
01/17/1995US5382678 Batch process for fatty acid alkaline earth metal salt production
01/13/1995CA2124433A1 Method and apparatus for recovering acetic acid from aqueous streams
01/12/1995WO1995001449A1 An improved method of preparing glyoxylic acid/aminomethylphosphonic acid mixtures using a microbial double-transformant
01/11/1995EP0633240A1 Recovery of citric acid from impure process streams by addition of strong acids and salts thereof
01/11/1995EP0633239A1 Recovery of organic acid salts from impure process streams by addition of bases
01/11/1995EP0633238A2 Asymmetric catalytic hydrogenation of alpha-arylpropenoic acids
01/11/1995EP0632798A1 Acetic acid recovery
01/11/1995EP0632797A1 Preparation of substituted or unsubstituted phenylglyoxals
01/11/1995CN1097150A A process for preparing hydrogenation catalysts which contain noble metals on activated carbon
01/10/1995US5380939 Storing acetic and propionic acids in form of alkali earth salts and with another aliphatic carboxylic acid
01/10/1995US5380938 Preparation of unsaturated carboxylic acids by carbonylation of allylic butenols and/or esters thereof
01/10/1995US5380933 Method for producing an unsaturated carboxylic acid
01/10/1995US5380932 Process for producing methacrylic acid and methacrolein by oxidation of isobutane with molybdenum heteropoly acid catalyst
01/10/1995US5380931 Oxidative cleavage of polyethylenically unsaturated compound to produce carboxylic acid
01/10/1995US5380930 Reacting alkoxyalkanol with a nitroxide
01/10/1995US5380929 Process for the preparation of acetic acid and acetic anhydride
01/10/1995US5380928 Two step oxidation process for the production of carboxylic acids such as azelaic acid from unsaturated substrates
01/10/1995US5380927 Process for preparing optically active 2-aryl-alkanoic acids, in particular 2-aryl-propionic acids
01/10/1995US5380926 Reacting a tetrafluorophthalimide with alkali metal hydroxide to form alkali salts of 4-hydroxy-3,5,6-trifluorophthalamic acids and 3-hydroxy-2,4,5-trifluorobenzamides, methylation, acidification, decarboxylation
01/10/1995US5380912 ω-hydroxy-(ω-3)-ketonitrile
01/10/1995US5380892 Clathrates
01/10/1995US5380867 Crystallization of salts of optically active alpha-arylcarboxy acids
01/10/1995US5380497 Oxidation process and apparatus
01/10/1995CA1333910C Process for the preparation of basic salt, such a salt and lubricating oil compositions containing such a salt
01/07/1995CA2126368A1 Recovery of organic acid salts from impure process streams by addition of bases
01/05/1995WO1995000469A1 Process for producing ammonium salt of perfluoro carboxylic acid
01/05/1995WO1995000243A1 Oxidative cleavage of alkenes
01/05/1995EP0641169A4 Preparation of a fatty acid alkaline salt.
01/05/1995DE4422227A1 Katalysator zur Reduktion von Kohlendioxid Catalyst for the reduction of carbon dioxide
01/04/1995EP0632061A1 Process for producing polyisobutyl succinic anhydrides
01/04/1995EP0632032A1 Process for purifying tetrachlorophthalic anhydride and high-purity tetrachlorophthalic anhydride
01/04/1995EP0632009A1 Process for the recuperation of fluorinated carboxylic acids
01/04/1995EP0632008A1 Pentanoic acid derivatives
01/04/1995EP0632007A1 Method of removing iodine compounds from crude acetic anhydride or mixture of crude acetic anhydride and crude acetic acid
01/04/1995EP0632006A1 Process for the carbonylation of methanol or a reactive derivative thereof
01/04/1995EP0632005A1 Production of metal salts
01/04/1995EP0631814A1 Ru-Sn HETEROPOLYNUCLEAR COMPLEX AND PROCESS FOR PRODUCING ACETIC ACID OR METHYL ACETATE BY USING THE SAME
01/04/1995EP0631569A1 Production of xylitol.
01/04/1995EP0439616B1 Method of producing 3,4,3',4'-substituted biphenyl compounds
01/04/1995EP0439578B1 Process for the production of trimellitic anhydride with improved color
12/1994
12/31/1994CA2126961A1 Process for the carbonylation of methanol or a reactive derivative thereof
12/28/1994EP0630879A1 Process for production of unsaturated aldehyde and unsaturated carboxylic acid
12/28/1994EP0630579A1 Ruminant feed supplement formulation
12/28/1994EP0630363A1 Recovery of acetyl values from ethylidene diacetate
12/28/1994CN1027163C Removel of iodine or iodide impurities
12/27/1994EP0644865A4 Supercritical separation of isomers of functional organic compounds at moderate conditions.
12/24/1994CA2126547A1 Animal feed additive formulation
12/22/1994WO1994029258A1 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process
12/22/1994WO1994029257A1 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process
12/22/1994WO1994029256A1 Batch process for fatty acid alkaline earth metal salt production
12/22/1994WO1994028715A1 Quaternary ammonium and waterproofing/preservative compositions
12/21/1994EP0629603A1 Process for the production of esters
12/21/1994EP0629439A1 Sulphuretted catalyst of platinum on activated carbon
12/21/1994EP0629187A1 Direct-dyeing colouring agents for natural and synthetic fibres.
12/21/1994EP0629183A1 Mixed magnesium/zinc basic soaps
12/21/1994CN1027063C Process for preparing carboxylic acids
12/21/1994CN1027062C Preparation of 2-chloroterephthaloyl chloride
12/21/1994CN1027060C Process and catalyst for the production of ethylene and acetic acid
12/21/1994CN1027047C Oxidation catalyst and process of preparation
12/21/1994CN1027046C Shaped oxidation catalyst structures for the production of maleic anhydride
12/21/1994CN1027045C Catalyst for catalytic gas-phase oxidation of olefin to unsaturated aldehydes
12/20/1994US5374774 Reduction of variability of liquid levels in the reactor and flasher and in the flow rates of process streams improves efficiency
12/20/1994US5374773 Process for the preparation of 3,4-dihydroxybutanoic acid and salts thereof
12/20/1994US5374767 Process for the production of cyclohexyladipates and adipic acid
12/20/1994CA1333612C Process for the preparation of cyclopentene, cyclopentane, and cyclohexane derivatives
12/15/1994DE4319648A1 Sulphidised catalyst containing platinum on activated charcoal
12/14/1994EP0628577A2 Silyl bridged metallocenes and use thereof
12/14/1994EP0628566A1 Metallocenes and processes therefor and therewith
12/14/1994EP0628565A1 Bis fluorenyl metallocenes and use thereof
12/14/1994EP0628534A1 Process for the stereospecific synthesis of leucotriene B4 having configuration 6Z, 8E, 10E and intermediate products
12/14/1994EP0628533A1 Recovery of hydroxy acids from trash
12/14/1994EP0628019A1 Polyfluoroalkylation of aromatic compounds.
12/14/1994EP0511986B1 Olefinically unsaturated adducts of ethylene on polyunsaturated fatty acids or fatty acid esters and process for producing them
12/14/1994CN1096289A Royal jelly strong active protein extracting method and products
12/14/1994CN1096288A High-purity chloric acid producing tech.
12/14/1994CN1026977C A process for one continuous orrgomerization or nexaituoropropene
12/11/1994CA2098220A1 Recovery of hydroxy acids from trash
12/08/1994WO1994027948A1 A process for the preparation of gemfibrozil
12/08/1994WO1994027939A1 Process for the manfuacture of linear hydrofluorocarbons containing end group hydrogen substituents and azeotropes thereof
12/08/1994DE4318258A1 Process for the recovery of fluorinated carboxylic acids
12/08/1994CA2163084A1 A process for the preparation of gemfibrozil
12/07/1994EP0627403A1 Method for the production of hydroxyphenylacetic acids
12/07/1994EP0627402A1 Process for preparing hydroxyphenylacetic acids
12/07/1994EP0627401A1 Process for preparing acetic acid by oxidation of ethane
12/07/1994EP0626939A1 Tri-substituted phenyl derivatives as phosphodiesterase inhibitors
12/07/1994CN1026863C Preparation of vanadium-phosphorus-zirconium mixed oxide catalyst for producing cis-butenedioic anhydride
12/06/1994USRE34805 Benzonaphthalene derivatives and their use in therapeutic and cosmetic compositions
12/06/1994US5371287 Alkali or alkaline earth salts of hydroxycarboxylic acid which can be ionized in solution when mixed with an aliphatic carboxylic acid having lower dissociation constant
12/06/1994US5371286 Removal of carbonyl impurities from a carbonylation process stream
12/06/1994US5371283 Feeding a pure oxygen into the body of liquid consisting of p-xylene reactant, solvent, oxidation catalysts and a bromine compound activators
12/06/1994US5371280 Copper or manganese dithocarbamate
12/06/1994US5371258 Methods of preparing cuprous and cupric carboxylates
12/06/1994CA2010448C Process for producing catalyst precursor and corresponding catalyst
12/06/1994CA1333397C Fluorinated arachidonic acid derivatives
12/06/1994CA1333323C Crystalline (metallo) silicates and germanates
12/06/1994CA1333322C Crystalline (metallo) silicates and germanates
11/1994
11/30/1994EP0626201A1 Process for producing acetic acid or methyl acetate and catalyst
11/30/1994EP0533726B1 Process for producing metal soaps
11/30/1994CN1026784C Method for production of acrylate and acrylate-containing polymer
11/30/1994CN1026783C Process for preparing carboxylic acids